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A toothed line following the ground.
Also known as: Fortress wall map symbol Korea
Denotes a historic fortress wall on a Korean topographic map, a feature class Korea maps in unusual detail.
Is mapped as a live feature class rather than an archaeological one because Korean mountain fortresses survive in large numbers and many are still walked; the symbol distinguishes standing wall from restored wall from traced line, which is a three-way condition distinction few map legends carry.
Contexts: Maps
A line with regular square projections along one side, broken by small filled blocks where a gate or a command post stands.